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| author | Pavel Skripkin <paskripkin@gmail.com> | 2021-08-19 18:15:21 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-22 11:41:21 +0200 |
| commit | 90cc9527c8178f9f0a1deee2239734e958ac046a (patch) | |
| tree | 0f9ecdda97cf71d781209a23f28331d9252c0cf9 /include/linux/timer.h | |
| parent | 9c2c0e8189d639af03699b1d0939bd94701028df (diff) | |
Bluetooth: add timeout sanity check to hci_inquiry
[ Upstream commit f41a4b2b5eb7872109723dab8ae1603bdd9d9ec1 ]
Syzbot hit "task hung" bug in hci_req_sync(). The problem was in
unreasonable huge inquiry timeout passed from userspace.
Fix it by adding sanity check for timeout value to hci_inquiry().
Since hci_inquiry() is the only user of hci_req_sync() with user
controlled timeout value, it makes sense to check timeout value in
hci_inquiry() and don't touch hci_req_sync().
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-and-tested-by: syzbot+be2baed593ea56c6a84c@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux/timer.h')
0 files changed, 0 insertions, 0 deletions